Headaches (just ranting)

I had Rny on 12-8-09. Before that I used my cpap faithfully for 5 years. I never had any problems. I loved my cpap, it lulled me to sleep at night. Then after surgery I can't keep my cpap on for more than 10 minutes. Even that long causes headaches that last for hours. Now it feels like I have too much air blowing in my nose and I am swallowing air. I asked my doc recently if he would send in a referral for me to get tested again. He told me to wait until my weight stabilizes and until then wean myself off the cpap. So I stopped using it. My cpap is currently at a 6, but I need it lowered. Someone from the cpap company has to come out and do it, but won't without a referral from the sleep specialist. Did anyone else get headaches from their cpap after surgery? I miss my cpap, but don't miss the headaches.